Spoiler (click to show/hide):
Throw down a CC on the tanks and then go straight for the DPS/Healer, always the best boss strat.
Also, debating making the catgirl a WH40k fan or something else silly like that. Mostly so she can get a 'Bolter Bitch' tattoo on one arm. Mostly for giggles.
The amazons see your movement, beginning to form up into another protective wall while helping their compatriots free themselves. The commander though seems to finally lose patience, pulling out a small device that makes you sweat in an entirely new way. She begins to exaggeratedly struggle to free herself, keeping an eye on the undead monstrous hound as it begins to circle the group, still focused almost entirely on yourself. It blasts the group with frost magic once more, to the tune of a large number of cries of pain and frustration. The commander seems to have escaped, and also spots the newly made blind spot directly behind it. As it begins to close in on you, she darts forward, climbing up its back, stuffing the device under the helmet before she's tossed across the room. She groans but you can still see the feral smile on her face as the creature turns back to you.
As it closes, you feel the raw surge of magical energy from inside of it. Something violently opposed to the undead magic animating it. Its eyes shift from the pale blue glow frost magic to intense red as fire erupts from under its collar, streaks of flame blasting out as the incendiary magic consumes everything under the armor. The amazons begin to calm down, a few taking up guard position at the door, not that you feel much magic shifting around as the entire troop rests and the healers get to work. That was terrifying.